Graphics card is being pulled out

Hi I have a big problem, My USB connections are a little hard to access and when I pull my case out to get to them the case twists and it pulls my graphics card from its PCIe slot, this causes crashes. I have an Antec 900 chasis.
If anyone has seen this sort of thing b4 or can offer advice I would be happy with any suggestions.

Create more slack in your DVI cable? Use a USB hub even though I hate them. You really shouldn't be doing anything that is causing any pulling or jerking of the cards in your machine - nothing should be that tight.